You'll need to use ssh-keygen to make a set of RSA keys. Don't enter a password when it prompts for one; this will ensure passwordless operation. Once the keys are created, copy ~/.ssh/id_rsa.pub to ~/.ssh/authorized_keys and you should be set.

Hi,
I have tried so much for correcting that ssh error but unable solve it. but when i tried connecting to client nodes through ssh <node ip address> in root user iam iam successful but when i have created an new user iam unable to connect. so please any help
in solving this. As iam nearing to deadline.